Oh yeah sure. I'll take a picture of it inside out. Basically the idea is to take some padding and pin it in the place you want, mind you it should be stable padding and not like fluff from pillows or the like, mark where you need to put eyelets, poke holes in the fabric and the padding, then, use an eyelet press to punch a grommet onto the thing, thereby grabbing the fabric and padding, keeping everything in place. [link]

Even without the grommets you can still hold the thing in place by either sewing around the edges, but be careful if they fabric is really stretchy. Or by getting fusible fabric that when ironed, will stick to the other fabric, with that method I would recommend still adding a couple of place holder knots with thread in case wear causes it to detach.